How is quartzite used?
Prolonged heat and pressure change sandstone to quartzite, a hard, grey rock. The building industry uses quartzite because of its strength and resistance to erosion. Many other industries choose quartzite as a raw material to produce other useful substances.ConstructionCities repair roads with quartzite. Homeowners decorate their steps, walls, floors and roofs with quartzite because the mineral easily forms slabs.FerrosiliconQuartzite helps produce ferrosilicon, a silicon and iron alloy. This alloy in turn helps manufacture steel, extract magnesium and produce hydrogen fuel.SilicaPebbles of quartzite provide an industrial silica source. Silica, sand with high silicon dioxide content, produces glass, helps build metal castings and breaks rock to free oil, gas and water.SiliconSemiconductors, processors, transistors and solar panels all use pure silicon, which is extracted from quartzite.CarborundumQuartzite also produces carborundum, a compound of silicon and carbon. Manufacturers build
